emiya_shirou, to find out, you can use the data that Antutu benchmark collects (without even running a benchmark test): https://www.howtogeek.com/253461/how-to-find-out-if-your-device-is-running-32-bit-or-64-bit-android/
As for me, I have the same question but I know that my phone is running 64-bit Android. The phone is a OnePlus 6 and it won't install latest dev builds of Dolphin, but does install from the Play Store AND installs the MMJ branch (I'd rather use the latest Dolphin builds though for consistency)
As for me, I have the same question but I know that my phone is running 64-bit Android. The phone is a OnePlus 6 and it won't install latest dev builds of Dolphin, but does install from the Play Store AND installs the MMJ branch (I'd rather use the latest Dolphin builds though for consistency)